Freeranger-
Just last week put 2 inch tires on a recumbent bike (2 wheels) and took it off road at Turkey Run (The Paw Paw Trail) and it was a BLAST! But it really jiggled the giblets with no suspension on the bent. The Seatonville Trail at Turkey Run is very smooth but only a mile in length. There is a trail outside Elizabethtown that's about 5 miles in length (at Freeman Park Lake) that I'm going to try later this week that sounds nice. Then there are a couple of trails at Mammoth Cave Nat. Park that are pretty flat and not very technical I am going to try. I'm 75, so neither the innerds nor the backside can take a lot of roots and rocks on the trail any more, especially without suspension.